Sheet delivery mechanism



y 4, 1943- E. KLUGE 2,318,165

SHEET DELIVERY MECHANISM Filed Oct. 11, 1941 5 Sheets-Sheet 1 EneValKluge May 4, 1943. E, LU E SHEET DELIVERY MECHANISM Filed Oct. 11, 19415 Sheets-Shet 2 May 4, 1943. E. KLUGE SHEET DELIVERY MECHANISM Filed05b. 11, 1941 v5 Sheets-Sheet s gwuc/rvfo't Enevgl Kluge M y 9 E. KLUGE2,318,165

SHEET DELIVERY MECHANISM Filed Oct. ,11, 1941 "Emeval Kluge 5Sheets-Sheet 5 Patented May 4, 1943 SHEET DELIVERY MECHANISM EnevalKluge,

St. Paul, Minn.,

assignor to Brandtjen & Kluge, Inc., St. Paul, Minn., a. corporation ofMinnesota Application October 11,1941, Serial No. 414,628 11 Claims.(01. ion-287) My invention relates to improvements in sheet deliverymechanisms and pertains especially to pneumatic delivery devices forprinting presses of the Gordon type and of the nature disclosed inPatents No. 1,472,656 of October 30, 1923, No. 1,621,547 of March 22,1927, and No. 2,088,377 of July 27, 1937, all granted to Abel Kluge andmyself.

Said prior delivery mechanisms have functioned efficiently in extensivepractice and particularly those disclosed in the second and thirdpatents above noted. These mechanisms, as may be observed upon referenceto said patents, have been incorporated in printing presses of theGordon type equipped with pnuematic feeding means, such means includingan oscillating feeding arm hung over a press and equipped at its freeend with suction grips movable upon each cycle of the arm from a fixedsheet receiving position to the press platen and back again. The meansemployed for supplying a press with sheets to be printed has consistedof an elevated sheet magazine consisting of an inclined table for thereception of a pack of sheets on edge and consisting further of anadvancing back rest for supporting the leaning pack and maintaining theleading sheet thereof at said fixed sheet receiving position as thefeeding mechanism diminishes the pack, sheet by sheet. The sheetdelivery mechanism of each of said patented structures has been locatedbeneath the stock magazine of the press and has included a membermovable back and forth to take the printed sheets from the open platenand deposit them on a delivery table. In the use of presses of theinstant nature equipped with pneumatic sheet feeding and deliveringmechanisms, it has become desirable to increase the capacity of thesheet magazines. sideratum may be accomplished and without radicalreconstruction of press and feeder parts simply by extending the lowerend of a magazine to make it longer. But, such acceptable lengthening ofa magazine so narrowly reduces the spacebeneath it that a deliverymechanism constructed and arranged as heretofore cannot be accommodatedtherein.

It is an object of my present invention to provide a pneumatic sheetdelivery mechanism for a self-fed printing press of the naturehereinabove indicated which is improved from the standpoints ofsimplicity, durability, cost of production, cost of maintenance, andefiiciency and convenience in use, it being also a purpose of myinvention to furnish such a delivery mechanism in'which the .parts areso constructed and ar- This deranged that the sheet taking members areamply accommodated in overhead space limited in extent by a sheetmagazine located thereabove.

Other objects of the invention reside in the novel combination andarrangement of parts and in the details of construction hereinafterillustrated and/or described.

In the drawings, Fig. 1 is a side elevational view of a pneumaticallyfed printing press of the Gordon type, the same being shown as equippedwith pneumatic sheet delivery mechanismin embodiment of my presentinvention; Fig. 2 is a fragmentary elevational sectional view takenthrough the structure shown in Fig. 1, said view illustrating the insideof the cam-assembly seen from the outside in said Fig. 1; Fig. 3 is afragmentary perspective view illustrating a portion of the press and'aportion of the delivery mechanism shown in Fig. 1; Fig. 4 is anelevational sectional view in detail taken as on the line 4-4 of Fig. 3,said view showing especially the carrier structure for the suction gripsof the delivery mechanism; Fig. 5 is a plan view in detail of thestructure shown in Fig. 4; Fig. 6 is a detail sectional view taken as onthe line 66 of Fig. 4; Figs. 7 to 10 inclusive are diagrammatic viewsillustrating a typical path followed by the suction grips of thedelivery mechanism and further il-' lustrating the carrier structure forsaid grips in difierent positions thereof in respect to the platen ofthe press and the sheet magazine of the feeding mechanism.

Reference being had to the accompanying drawings, it will be observedthat the platen press illustrated therein conventionally includes aframe In, a cam-gear wheel ll, an oscillatory bed l2 rocked by saidcam-gear wheel 'I I through sidearms l3, and an oscillatory'platen l4also rocked by said cam-gear wheel II through a cam l5 (Fig. 2) Vthereon and a cam-arm I6 cooperating with said cam. As is customary,during each cycle o f'the press, the bed II and platen l4 rock to closeupon each other for the impression and then rock away from each othertoopen and give access to the platen 14 for the removal of the printedsheet therefrom and for the application of a fresh sheet thereto.

The feeding mechanism, shown more or less diagrammatically inconnection" with the illustrated press structure, is of the naturedisclosed in said Patents Nos. 1,472,656 and 2,088,377 and more nearlyresembles the disclosure of the latter patent. This feeding mechanismhas a stock magazine for sheets to be printed, said magazine includingan inclined table I! upon'which a leaning pack of sheets l8 stand onedge, the same being supported against toppling by a rest, I!) which isintermittently advanced always to present the foremost sheet of the ackat a predetermined or fixed sheet receiving position. Also included insaid sheet feeding mechanism is a standard 26 anchored to the pressframe I6 and carrying a feeder head 2| in which a feeder arm 22 hearingsuction feed grips (not shown) is mounted to oscillate and in itsoscillatory cycle of movement to carry the feed grips from a 10 calityenabling them to grasp a sheet at said sheet receiving position andthence down and over the platen l4 and back again for a new sheet. Themounting for the feeder arm 22 includes an eccentric member (not shown)which is rocked, as said feeder arm oscillates to project and to retractsaid arm. n

A cam assembly mounted at the side of the press frame l| includes a camshaft 23 (Fig. 2') upon which cams 24, 25, 26 and 21 are mounted, saidcam shaft 23 being driven through gears 28, 29 and 30 by the cam-gearII, which, in turn, is driven by a. gear 3| on the drive shaft 32 of thepress. The cam 24 is engaged by a cam follower 33 on a lever 34connected through a link 35 with a rocker-arm 36 which rocks the feederarm 22 of the feeding mechanism, said eccentric mounting for said feederarm 22 being rocked through a rocker-disk 31, a link 38, and a lever 39having a cam-follower 4|] thereon engaging the cam 25 of said camassembly.

The delivery mechanism to which my present invention especiallypertains; includes a long oscillatory delivery arm 4| pivoted at itslower end, through a pivot 4 I, to the base of the press frame In at oneside thereof, said arm extending upwardly in front of the platen I4.This arm 4| swings back and forth between a substantially uprightrearmost position (dotted lines, 1) for the taking of a printed sheetfrom the platen l4 and in inclined foremost position (solid lines,Fig. 1) for depositing such printed sheet upon the delivery table 42 ofthe press. Threaded intothe upper end of the delivery arm 4| andextending inwardly therefrom is a headedstud 43 (Fig.6) upon which isswiveled a sleeve-like carrier member 44. A mounting 45 pivotedto saidcarrier member 44 has a hollow support 46 issuing therefrom and uponwhich suction grips 41, borne by tubular suction stems 48, are securedby means of adjustable clamps 49, 49 embracing said support and stems.Said mounting 45 has a hollow shank 56 into which said support 45 isthreaded, said shank being formed with a nipple 5| communicating withthe interior of the support 46 through the interior of said shank 56,said nipple 5| having a suction hose 52 attached thereto. Carried by thehollow support 46 is a hollow Y fitting 53, the leg of which is clampedto said support 46 in a manner bringing the interior thereof intocommunication with the interior of said support, each of the branches ofsaid fitting being connected by a length of suction hose 54 with one ofthe suction stems 48. The shank 56 of the mounting 45 has a head thereonformed with a planiform face 55 which faces a similar face 51 on thehead 51 of a boss 58 formed integrally with the upper portion of thecarrier member 44. This boss 58 and the head 51 thereof have a smoothaxial bore extending therethrough which snugly but revolubly receivesthe body of a headed pivot screw 59, the tip of said -screw having righthand threads screwed into a threaded bore formed axially of the head 55of said mounting 45. The carrier member 44 has a lug 60 (Fig. 4) at itsrear side through which an upwardly extending abutment screw 6| isfitted, said screw being supplied with a lock-nut 62 adapted to beturned up against the bottom of said lug 66. Issuing forwardly from theshank 59 of the mounting 45 is a stop-lug 63 which engages the upper endof said set abutment screw 6| when the mounting 45 is swung down tolocate the tubular support 46' roughly in substantially horizontaloperative position, the more accurate positioning of said support 46,for any particular job, being accomplished by turning the screw 6| up ordown as the occasion may require. In the operative and substantiallyhorizontal position of the support 46, the pivot screw 59 is so turnedin the head 55 of the mounting 45 that the face 55 of said head 55 isbrought closely against the face 51 of the head 51 on the carrier member44, thus depriving the mounting 45 of any lost motion relative to saidcarrier member 44 during the operation ofthe delivery mechanism. Toshift the support 46 from its said operative position into aninoperative position for giving access to the press platen I4, withoutinterference from said sup-' port and the parts carried thereby, saidsupport 46 is readily swung upwardly, the head 55 of the mounting 45unscrewing on the threads of the pivot screw 59 and causing its face 55to be freed from contact with the face 51 of the head 51 on the carriermember 44. To limit the swinging of the support 46 away from itsoperative position and slightly beyond the vertical, or over center,where it will stand alone, I supply the head 51 on the carrier member 44with an abutment 64, the same being engaged by the stop-lug 63 on themounting 45 and keeping said mounting from swinging beyond itsover-center position. Whenever it is deemed advisable to secure thesupport 46 against being swung back inadvertently from its uprightinoperative position toward its operative position, the pivot screw 59will be turned to clamp the face 55* of the head 55 on the mounting 45against the face 51 of the head 51 on said carrier member 44. Thishaving been done, the screw 59 will be loosened to unclamp the mounting45 from the carrier member 44 when it is desired to return the support46 to its operative position and, if necessary, said screw 59 will beretightened in such operative position of said support to preclude anylost motion between the mounting 45 and said carrier member 44. e

To swing the delivery arm 4| back and forth, I employ the cam 26 of thecam assembly in com junction with a bell-crank 65, one branch of whichcarries a follower 66 engaging said cam 26, the other branch of saidbell-crank being connected through a link 61 with said delivery arm 4|.This swinging of the delivery arm 4| is attended with the swiveling ofthe carrier member 44 on the stud 53 issuing from said arm; suchswiveling of said member 44 being effected by means now to be described.Secured to the press frame In and extending forwardly there: from alongthe path of the upper end of the delivery arm 4| is a bracket 68 (Fig.3) having rel atively spaced guide-rails 69 between which the upper endof said arm 4| is slidably received. Pivotally mounted at its forwardend to an upstanding lug 16 at the forward end of the bracket 68 is avertically swingable cam-rail 1|, the free rear end of said cam-railbeing received between relatively spaced upstanding guide-lugs 12 at therear endof said bracket 68; To swing the camrail 1| up and down, a link13 connects the free end of said cam-rail with a lever 14 equipped witha follower 15 engaging the cam 21 of the cam assembly. The upper edge ofthe cam-rail 1| provides its cam surface it and riding said cam surfaceis a follower roll 71 mounted on the end of cam-arm 18 issuingrearwardly from the carrier member 44. Yieldingly operating to keep saidfollower roll 11 in engagement with the cam surface 16 of the cam-rail1| is a thrust-rod 19 socketed at its upper extremity in the end of anarm 80 issuing forwardly from the swiveled carrier member 44. Thethrust-rod 19 is slidably mounted in a guide-clip 8| secured to thedelivery arm 4|. Encircling the thrust-rod 19 to urge the same upwardlyis a helical spring 82 which is compressed between said guide-clip 8|and a washer 83 keyed to said thrust rod 19.

Extending along the forward edge of the-delivery arm 4| is a metallicsuction tube 84 which is secured at its upper end to the upper end ofsaid arm 4| by said guide-clip 8|, the lower end of said tube 84 beingsecured to the lower end of said arm 4| by a fastening clip 85. Thesuction hose 52, attached at the one end thereof to the nipple of themounting 45, is flexible and attached at its other end to the upper endof said suction tube 84, said hose- 52 being looped under the bracket 88and flexing to accommodate the movements of the mounting 45 relative tothe delivery arm 4|. The lower end of the suction tube 84, located nearthe pivot M of the delivery arm 4|, has a hose 85 connected therewithwhich leads to a suction pump (not shown) driven by the press mechanism.Suction in this hose 86 is alternately established and relieved by valvemeans, not shown herein, to cause the suction grips 41 to grasp a sheetat the sheet taking position of said grips and to release the sheet attheir sheet depositing position.

The swinging cycles of the delivery arm 4|, cam-rail 1| and press platenM are concurrently effected and coordinated so that the suction grips41, properly adjusted to the particular job in hand, will take a printedsheet from the open platen, carry it forward therefrom and drop thesameupon the sheet delivery table 42.

lhe cam surface of the cam-rail1| throughout the greater portion of itsextent, from the front portion thereof toward the rear, substantiallyconforms with an arc struck from the pivotal axis of the delivery arm4|, the rear portion of said cam surface dipping downwardly within sucharc. With the roll 11 of the carrier member 44 following said camsurface 16 on the swinging cam-rail 1|, each suction grip 41 is directedas through typical paths indicated in each of the Figs. 7 to 10inclusive. In Fig. 7, the delivery arm 4| is shown in its extremeforward position at a time when the cam-rail 1| is depressed.correspondingly, the suction grip 41 is at its lowermost and extremeforward position, having been carried into such position from the openplaten M with a printed sheet preparatory todepositing such sheet on thefeed table of the press. During the closing of the platen M, thecam-rail 1| is swung upward causing the suction grip 41, now relieved ofthe printed sheet previously grasped thereby, to be carried in anascending path 81' to its uppermost and extreme forward position (Fig.8). Following this positioning of the suction grip 81, the delivery arm4| moves rearwardly carrying said grip toward the then closed platen H-in a generally elevated path 88.

When the follower 11 of the carrier member 44 reaches the said dippedportion'89 of the'camrail 1|, the elevated path 88 of the suction grip41 dips correspondingly and brings said grip to the end of its saidgenerally elevated'travel, as shown in Fig. 9. In the final stage of theopening movement of the platen l4, the delivery arm 4| progresses in thefinal stage its rearward swing and, concurrently therewith, the cam-rail1| is swung downward, the result being that the suction grip 41 pitchesdownward, as in the path 90, arriving at the face of the platen 54 assaid platen reaches its fully open position (Fig. 10). Here, the suctiongrip 41 grasps the printed sheet on the platen l4 and this having beenaccomplished, the delivery arm 4| swings away from the platen l4 toremove the grasped sheet therefrom. Upon this swing-away movement of thedelivery arm 4|, the suction grip 41 follows a depressed path 9|, thecooperation of the clipped portion 89 of the cam-rail 1| with thefollower, .11 causing the grip 41 to rise from the platen M as it beginsits departure therefrom, whereby the sheet is freed from any danger ofbeing dislodged from the grasp of the suction grip 41 by the scuffingthereof along the platen.

Among the numerous advantages residingin my present construction is theadvantage gained by the employment of the delivery arm 4| to carry thesuction grips 41 and their supporting means and by the furtheremployment of the swinging cam-rail to effect the dipping of the suctiongrips 41. This provision makes for simplicity in construction and forquiet, long-wearing, smooth and efficient operation. Furthermore, inthis construction, the required. overhead space progressively decreasesforwardly from the platen and accords with the correspondingprogressively increasing requirement for space occasioned by thelengthening of the stock magazine in enlargement of its capacity. Inrespect to the suction line leading to the suction grips 41, my improvedarrangement of parts compactly supports the non-flexible and flexibleconduit sections, the latter readily accommodating the limited flexingmovements imposed upon them. The grip support 46 is readily adjusted tothe precise operating position desired and, so adjusted, is firmly heldrelative to the carrier member 44. Yet, without binding, said support 46is readily swung upwardly into an over-center inoperative position,where it is self-retained and, if desired, additionally clamped by thepivot screw 59 upon which it swings.

Changes in the specific form of my invention, as herein disclosed, maybe made within the scope of what is claimed without departing from thespirit of my invention.

Having described my invention, what I claim as new and desire to protectby Letters Patent is:

1. Delivery mechanism for a self-fed platen printing press having adelivery .table in front of the platen and an overhead magazine forsheet stock, said mechanism comprising an oscillatory delivery armpivoted at its lower end to the base of the press at one side thereofand swingable from a substantially upright rearward position to aninclined forward position, a carrier member swiveled to the upper end ofsaid arm, a support extending inwardly of the press structure andmounted on said carrier member, said support having a suction gripthereon, a bracket extending forwardly from the press frame andincluding spaced rails at opposite sides of said delivery arm forguiding the same in its swinging movements, a swingable cam-rail pivotedat its forward end to the forward end of said bracket, the rearward endof said bracket having guides for the rearward end of said cam-rail toguide the same vertically, said cam-rail having a cam surface extendingtherealong said cam surface in greater part substantially coincidingwith an arc struck from the pivotal axis of the delivery arm andclipping at its rearward portion beneath such are, said swiveled carriermember having a cam-arm thereon coacting with the cam surface of saidcam-rail, means for swinging the delivery arm back and forth to carrythe suction grip rearwardly over the platen for the taking of a sheettherefrom and forwardly over the delivery table for the depositing ofthe sheet thereon, said delivery arm substantially throughout its entireforward movement directing said carrier member in a descending arc toclear the overhead stock magazine of the press, means for swinging thecam-rail up and down to cause the grip to follow an elevated path uponits approach I to the platen and to depart from the platen along a lowerpath, the cam surface of said cam-rail and the downward swinging thereofcombining in cooperation with said cam-arm to turn the swiveled carriermember and cause the suction grip to dip sharply to a position forgrasping a sheet on the platen and, upon .thus dipping, to

clear the opening platen, arriving at such position substantiallyconcurrently with the completiqn of the opening of said platen, said camsurface further cooperating with said cam-arm reversely to turn saidswiveled carrier member and cause the grip to rise from its said sheetgrasping position as it moves forwardly to sheet depositing position,

2. Delivery mechanism for a self-fed platen printing press havin adelivery table in front of the platen and an overhead magazine for sheetstock, said mechanism comprising an oscillatory delivery arm pivoted atits lower end to the base of the press at one side thereof and swingablefrom a substantially upright rearward position to an inclined forwardposition, a carrier member swiveled to the upper end of said arm, asupport extending inwardly of the press structure and mounted on saidcarrier member, said support having a suction grip thereon, a bracketextending forwardly from the press frame, a swingable cam-rail pivotedat its forward end to the forward end of said bracket and having a camsurface extending therealong, said cam surface in greater partsubstantiaily coinciding with an arc struck from the pivotal axis of thedelivery arm, said swiveled carrier member having a camarin thereoncoacting with the cam surface of said cam-rail, means for swinging thedelivery arm back and forth to carry the suction grip rearwardly overthe platen for the taking of a sheet therefrom and forwardly over thedelivery table for the depositing of the sheet thereon, said deliveryarm substantially throughout its entire forward movement directing saidcarrier memher in a descending arc to clear the overhead stock magazineof the press, means for swinging the cam-rail up and down to cause thegrip to follow an elevated path upon its approach to the platen and todepart from the platen along a lower path, the cam surface of saidcam-rail and the downward swinging thereof combining in cooperation withsaid cam-arm to turn the swiveled carrier member and cause the suctiongrip to dip sharply to a position for grasping a sheet on the platenand, upon thus dipping, to clear the opening platen, arriving at suchposition substantially concurrently with the completion of the openingof said platen.

3. Delivery mechanism for a platen printing press having a deliverytable in front of the platen, said mechanism comprising an oscillatorydelivery arm pivoted at its lower end to the base of the press at oneside thereof and swingable from a substantially upright rearwardposition to an inciined forward position, a carrier member swiveled tothe upper end of said arm, a support extending inwardly of the pressstructure and mounted on said carrier member, said support having asuction grip thereon, a bracket extending forwardly from the pressframe, a swingable cam-rail pivoted at its forward end to the forwardend of said bracket and having a cam surface extending therealong, saidcam surface in greater part substantially coinciding with an arc struckfrom the pivotal axis of the delivery arm and dipping at its rearwardportion beneath such arc, said swiveled carrier member having a cam-armthereon coacting with the cam surface of said cam-rail, means forswinging the delivery arm back and forth to carry the suc tion griprearwardly over the platen for the tak-.- ing of a sheet therefrom andforwardly over the delivery table for the depositing of the sheetthereon, said delivery arm substantially throughout its entire forwardmovement directing said car ier member in a descending are to provideoverhead clearance, means for swinging the camrail up and down to causethe grip to follow an elevated path upon its approach to the platen andto depart from the platen along a lower path, the cam surface of saidcam-rail and the downward swinging thereof combining in cooperation withsaid cam-arm to turn the swiveled carrier member and cause the suctiongrip to dip sharply to a position for grasping a sheet on the platenand, upon thus dipping, to clear the opening platen, arriving at suchposition substantially concurrently with the completion of the openingof said platen, said cam surface further cooperating with said cam-armreversely to turn said swiveled carrier member and cause the grip torise from its said sheet grasping position as it moves forwardly tosheet depositing position.

4. Delivery mechanism for a platen printing press having a deliverytable in front of the platen, said mechanism comprising a movabledelivery element, a carrier member swiveled to said element, a supportmounted on said carrier member, said support having a suction gripthereon, a vertically movable cam-rail having a cam surface extendingtherealong, said swiveled carrier member having a cam-arm thereoncoacting with the cam surface of said cam-rail, means for moving thedelivery element back and forth to carry the suction grip rearwardlyover the platen for the taking of a sheet therefrom and forwardly overthe delivery table for the depositing of the sheet thereon, saiddelivery element substantially throughout its entire forward movementdirecting said carrier member in a descending path to provide overheadclearance, means for moving the camrail to cause the grip to follow anelevated path upon its approach to the platen and to depart from theplaten along a lower path, the cam surface of said cam-rail and themovement thereof combining in cooperation with said cam-arm to turn theswiveled carrier member and cause the suction grip todip sharply to aposition for grasping a sheet on the platen and, upon thus dipping, toclear the opening platen, arriving at such popletion of the opening ofsaid platen, said cam surface further cooperatin with said cam-armreversely to turn said swiveled carrier member and cause the grip torise from its said sheet grasping position as it moves forwardly tosheet depositing position.

5. Delivery mechanism for a platen printing "press having a deliverytable in frontv of the platen, said mechanism comprising a movabldelivery element, a carrier member swiveled to said element, a supportmounted on said carrier member, said support having a suction gripthereon, a

vertically movable cam-rail having a cam surface extending therealong,said swiveled carrier member havinga cam-arm thereon coasting with thecam surface of said cam-rail, means for moving the delivery element backand forth to carry the suction grip rearwardly over the platen for thetaking of a sheet therefrom and forwardly over the delivery table forthe depositing of the sheet thereon, said delivery element substantiallythroughout its entire forward movement directing said carrier member ina descending path to provide overhead clearance, means for movingthecam-rail to cause the grip to follow an elevated path upon its approachto the platen and to depart from the platen along a lower path, the camsurface of said cam-rail and the downward move ment thereof combining incooperation with said cam-arm to turn the swiveled carrier member in onedirection and cause the suction grip to dip to a position for grasping asheet on the platen, said cam surface further cooperating with saidcamarm in the depressed position of said cam-rail reversely to turn saidswiveled carrier member and cause the grip to rise from its said sheetgrasping position as it moves forwardly to sheet depositing position.

6. Delivery mechanism for a self-fed platen printing press having adelivery table in front of the platen and an overhead magazine for sheetstock, said mechanism comprising an oscillatory delivery arm pivoted atits lower end to the press frame and swingable from a substantiallyupright rearward position to an inclined forward position, a gripcarried by said arm at the upper end thereof, means for swinging saiddelivery arm back and forth to direct said grip rearwardly over theplaten to reach a sheet thereon and forwardly over said table for thedelivery of the sheet thereto, said delivery arm substantiallythroughout its entire forward movement directing said grip in adescending path to clear the overhead magazine of the press.

7. Delivery mechanism comprising an element movable forth and back, acarrier member on said element, a hollow support having a suction gripthereon in communication with the interior of said support, a mountingfor the support, said mounting comprising a hollow shank and a headthereon having a planiform face, the interior of said shankcommunicating with the interior of said support, said shank having anipple for the attachment thereto of a suction hose, a screw issuingfrom said carrier member and threaded into the head of said mounting tosecure the mounting to the carrier member, said carrier member having ahead thereon formed with a planiform face facing said face on the headof said mounting, said mounting being adapted to turn on the threads ofsaid screw upon the swingillg of the support from a substantiallyhorizontal operative position to a substantially upright inoperativeposition, spaced abutments on the carrier member, a stop on saidmountingengaging one of said abutments in the operative position of thesupport and engaging the other. of said abutments in the inoperativeposition of said support, said latter abutment and stop cooperating torender said support self-sustaining in an upright over-centerrelationship, the turning of said mounting on said screw to locate saidsupport in its operative position serving to draw the face of themounting against the face of the carriermem her, the reverse turnin ofsaid mounting withdrawing the face thereof from said face of saidcarrier member. p

8. Delivery mechanism comprising an element movable forth and back, acarrier member on said element, 'a supporthaving a grip thereon-, .-a

mounting for said support, a screw revolubly carried by said carriermember and threaded into said mounting to secure the mounting to saidcarrier member, said mounting being adapted to turn on the threads ofsaid screw upon the swinging of the support from a substantiallyhorizontal operative position to a substantially upright inoperativeposition, spaced abutments on the carrier member, a stop on saidmounting engaging one of said abutments in the operative position of thesupport and engaging the other of said abutments in the inoperativeposition of said support, said latter abutment and stop cooperating torender said support self-sustaining in an upright over-centerrelationship, the turning of said mounting on said screw to locate saidsupport in its operative position serving to tighten said mountingagainst said carrier member, the reverse turning of said mountingloosening the same from said carrier member, said screw independentlyserving to tighten and loosen said mounting relative to said carriermember.

9. Delivery mechanism comprising an element movable forth and back, acarrier member on said element, a support having a grip thereon, amounting for said support, a screw issuing from said carrier member andthreaded into said mounting to secure the mounting to said carriermember, said mounting being adapted to turn on the threads of said screwupon the swinging of the support from a substantially horizontaloperative position to a substantially upright inoperative position,spaced abutments on the car- I rier member, a stop on said mountingengaging one of said abutments in the operative position of the supportand engaging the other of said abutments in the inoperative position ofsaid support, said latter abutment and stop cooperating to render saidsupport self-sustaining in an upright over-center relationship, saidformer abutment being adjustable to vary the operative horizontalpositioning of the support, the turning of said mounting on said screwto locate said support in its operative position serving to tighten saidmounting relative to said carrier member, the reverse turning of saidmounting loosening the same relative to said carrier member.

10. Delivery mechanism comprising an element movable forth and back, acarrier member on said element, a support having a grip thereon, amounting for said support, a threaded pivot connecting the mounting tosaid carrier member, said mounting being adapted to turn axially of saidpivot upon the swinging of the support from an operative position to aninoperative position, the turning of said mounting to locate saidsupport in its operative position serving, through said pivot, totighten said mounting against said carrier member, the reverse turningof said mounting serving to loosen the same relative to said carriermember.

11. Mechanism for pneumatically delivering sheets from a platen printingpress, said mechanism comprising an oscillatory delivery arm pivablecam-rail having a cam surface extending therealong, said swiveledcarrier member having a cam-arm thereon coacting with the cam surface ofsaid cam-rail, means for swinging the delivery arm to carry the suctiongrip to and from the platen for the removal of a sheet therefrom, meansfor moving the cam-rail, the cam surface of said cam-rail and themovement thereof combining in cooperation with said cam-arm to turn theswiveled carrier member, said second section of said suction conduitaccommodating movements of said grip relative to said delivery arm, andsaid third section of said conduit, at that portion thereof adjacent tosaid pivotal axis, serving to accommodate the swinging movements of saidarm.

ENEVAL KLUGE.

